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19028328 = 2331172077
BaseRepresentation
bin100100010010…
…1100101101000
31022210201221220
41020211211220
514332401303
61515502040
7320511114
oct110454550
938721856
1019028328
11a8172a0
126457920
133c33087
142754744
151a0d053
hex1225968

19028328 has 32 divisors (see below), whose sum is σ = 51896160. Its totient is φ = 5766080.

The previous prime is 19028311. The next prime is 19028333. The reversal of 19028328 is 82382091.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35775 + ... + 36302.

It is an arithmetic number, because the mean of its divisors is an integer number (1621755).

Almost surely, 219028328 is an apocalyptic number.

It is an amenable number.

19028328 is an abundant number, since it is smaller than the sum of its proper divisors (32867832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19028328 is a wasteful number, since it uses less digits than its factorization.

19028328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72097 (or 72093 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 19028328 is about 4362.1471777096. The cubic root of 19028328 is about 266.9727139000.

The spelling of 19028328 in words is "nineteen million, twenty-eight thousand, three hundred twenty-eight".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 72077 144154 216231 288308 432462 576616 792847 864924 1585694 1729848 2378541 3171388 4757082 6342776 9514164 19028328